Combined taylor vortex coagulation device

Abstract

The present application relates to the technical field of flocculation device, disclose a kind of combined Taylor vortex flocculation device, comprising: inner reaction cylinder structure, intermediate reaction cylinder structure, outer reaction cylinder structure and outer reaction pool are sequentially nested arrangement;Between inner reaction cylinder structure and intermediate reaction cylinder structure, between intermediate reaction cylinder structure and outer reaction cylinder structure, the pool wall between outer reaction cylinder structure and outer reaction pool forms annular gap, for producing Taylor vortex to carry out flocculation reaction;Inner reaction cylinder structure and intermediate reaction cylinder structure form first stage Taylor vortex reaction zone;Intermediate reaction cylinder structure and outer reaction cylinder structure form second stage Taylor vortex reaction zone;Outer reaction cylinder structure and the pool wall of outer reaction pool form third stage Taylor vortex reaction zone.The present application not only optimizes flocculation reaction flow field, integrates optimization reactor, improves the volume utilization rate and reaction efficiency of reactor, guarantees flocculation growth excellent rate, guarantees flocculation reaction effect.

Description

Technical Field

[0001] This invention relates to the field of flocculation equipment technology, and more specifically, to a combined Taylor vortex flocculation device. Background Technology

[0002] Currently, in the field of water treatment technology, there are numerous types and forms of flocculation devices. However, despite this variety, the volume utilization efficiency and overall treatment efficiency of these devices in practical applications still fall short of ideal levels, urgently requiring further improvement and optimization. Specifically, traditional flocculation devices generally suffer from several significant problems during operation. For example, the flow field is too simple, and the flocculation reaction process is insufficient, making it difficult for suspended solids to effectively form flocs for removal. Simultaneously, these devices have high energy consumption and high operating costs. Furthermore, they typically occupy a large area, hindering the rational use of space resources. These problems severely restrict the overall efficiency and economic benefits of water treatment processes.

[0003] Therefore, it is necessary to design a combined Taylor vortex flocculation device to solve the problems existing in the current technology. Summary of the Invention

[0004] In view of this, the present invention proposes a combined Taylor vortex flocculation device, which aims to improve the volume utilization efficiency of the flocculation tank, increase the flocculation efficiency, reduce energy consumption, and reduce the floor space required.

[0005] This invention proposes a combined Taylor vortex flocculation device, comprising: The structure consists of an inner reaction cylinder, an intermediate reaction cylinder, an outer reaction cylinder, and an outer reaction pool. The inner reaction cylinder structure, the intermediate reaction cylinder structure, the outer reaction cylinder structure, and the outer reaction pool are arranged in a nested combination. The annular gaps between the inner reaction cylinder structure and the intermediate reaction cylinder structure, between the intermediate reaction cylinder structure and the outer reaction cylinder structure, and between the outer reaction cylinder structure and the pool wall of the outer reaction pool respectively form annular reactor structures. Each annular gap can generate Taylor vortex to carry out flocculation reaction. The inner reaction cylinder structure and the intermediate reaction cylinder structure form a first-stage Taylor vortex reaction zone; the intermediate reaction cylinder structure and the outer reaction cylinder structure form a second-stage Taylor vortex reaction zone; and the outer reaction cylinder structure and the pool wall of the outer reaction tank form a third-stage Taylor vortex reaction zone.

[0006] Furthermore, the bottom of the inner reaction cylinder structure, the intermediate reaction cylinder structure, and the outer reaction cylinder structure are all provided with a slide rail and pulley linkage structure. Each reaction cylinder structure is connected to the bottom of the device through the slide rail and pulley linkage structure to ensure that each stage of the cylinder can rotate freely under the constraint of the pulley linkage structure, and that all the annular gaps have the same width.

[0007] Furthermore, the combined Taylor vortex flocculation device is provided with an inlet and an outlet. The inlet is located at the bottom of the first-stage Taylor vortex reaction zone, so that the raw water flows up and down sequentially through the first, second and third-stage Taylor vortex reaction zones. The outlet is located at the top of the outer reaction tank. The treated water overflows through the outer reaction tank wall and enters the water collection tank before being discharged, forming an overflow outlet structure.

[0008] Furthermore, the inner reaction cylinder structure, the intermediate reaction cylinder structure, and the outer reaction cylinder structure are each rotated by a rotation control system located at the top, which is used to control the rotation speed of each reaction cylinder structure in a coordinated manner.

[0009] Furthermore, the rotation control system is driven by a motor and controlled by an ABB intelligent frequency converter control box to regulate the rotation speed of each reaction cylinder structure.

[0010] Furthermore, under the control of the rotation control system, the inner reaction cylinder structure, the intermediate reaction cylinder structure, and the outer reaction cylinder structure all rotate at different speeds but in the same direction, forming a relative rotational relationship between adjacent cylinders; the relative rotational angular velocity between adjacent cylinders is the difference between their absolute angular velocities, and serves as the control parameter for the formation conditions and intensity of Taylor vortices in each annular gap; the formation state of Taylor vortices in each level of annular reaction zone is determined by the relative rotational angular velocity of the cylinders on both sides of the corresponding annular gap; the Taylor vortex reaction zone has 3 levels.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: The combined Taylor vortex flocculation device provided by the present invention, through the nested design of a three-stage reaction zone structure, provides different vortex fields for flocculation reaction according to actual needs; it not only makes full use of the limited space and precisely and efficiently divides the reaction pool, creating more Taylor vortices in the limited space; it also increases the effective volume of the Taylor reactor and the volume utilization rate in the limited space, optimizes the flocculation reaction environment, and creates more controllable vortex field environments in the limited space to improve flocculation efficiency, providing new ideas and methods for the miniaturization and integration of reaction pools. Attached Figure Description

[0012] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is a schematic diagram of the combined Taylor vortex flocculation device provided in an embodiment of the present invention.

[0013] In the diagram: 1-Outer reaction tank; 2-Outer reaction cylinder structure; 3-Intermediate reaction cylinder structure; 4-Inner reaction cylinder structure; 5-Slide rail; 6-Sliding wheel; 7-Rotation control system; 8-Water passage hole; 9-Water inlet pipe; 10-Water outlet pipe; 11-Water collection tank. Detailed Implementation

[0014] Exemplary embodiments of the present application will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present application and to fully convey the scope of the present application to those skilled in the art. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0015] See Figure 1 As shown in some embodiments of this application, this embodiment provides a combined Taylor vortex flocculation device, including: The inner reaction cylinder structure 4, the intermediate reaction cylinder structure 3, the outer reaction cylinder structure 2, and the outer reaction pool 1; The inner reaction cylinder structure 4, the intermediate reaction cylinder structure 3, the outer reaction cylinder structure 2, and the outer reaction pool 1 are arranged in a nested combination. The annular gaps between the inner reaction cylinder structure 4 and the intermediate reaction cylinder structure 3, between the intermediate reaction cylinder structure 3 and the outer reaction cylinder structure 2, and between the outer reaction cylinder structure 2 and the pool wall of the outer reaction pool 1 respectively form annular reactor structures. Each annular gap can generate Taylor vortex to carry out flocculation reaction. The inner reaction cylinder structure 4 and the intermediate reaction cylinder structure 3 form the first-stage Taylor vortex reaction zone; the intermediate reaction cylinder structure 3 and the outer reaction cylinder structure 2 form the second-stage Taylor vortex reaction zone; and the outer reaction cylinder structure 2 and the pool wall of the outer reaction pool 1 form the third-stage Taylor vortex reaction zone.

[0016] It is understandable that floc growth requires two core stages: micro-floc formation and large-floc growth. Initially, high-intensity hydraulic conditions are needed to ensure sufficient particle collision and contact. As the floc particle size increases, the hydraulic shear intensity needs to be gradually reduced to prevent the already formed large flocs from being broken. This invention utilizes a three-stage nested annular gap structure to construct three independently adjustable Taylor vortex flocculation reaction zones within the limited space of the same external reaction tank 1. This perfectly matches the stepwise growth pattern of flocs: by adjusting the relative rotational angular velocity of adjacent cylinders, the first-stage reaction zone can generate strong vortex shear, promoting thorough mixing and collision between particles and reagents in the raw water, generating initial micro-flocs; in the second-stage reaction zone, the vortex intensity can be adjusted to a medium level to maintain suitable shear conditions and promote the gradual collision, aggregation, and growth of micro-flocs; finally, in the third-stage reaction zone, a lower vortex intensity can be set to ensure continued particle aggregation while preventing the breakage of large flocs, ultimately forming large-sized, structurally stable, and settleable flocs. This structure eliminates the need for additional independent reaction units, achieving integrated arrangement of multi-stage reaction zones without increasing the overall external dimensions of the device. It not only meets the hydraulic requirements for floc growth but also avoids wasting space, greatly improving the space utilization efficiency per unit volume of the device.

[0017] Specifically, the combined Taylor vortex flocculation device is equipped with an inlet and an outlet: the inlet is located at the bottom of the first-stage Taylor vortex reaction zone, and the raw water flows through each stage of the reaction zone in sequence after being turbulent up and down. The flow direction is from bottom to top through the first stage, from top to bottom through the second stage, and then from bottom to top through the third stage; the outlet is located at the top of the outer reaction tank 1, and the treated water overflows from the wall of the outer reaction tank 1 to the water collection tank 11 and is then discharged, forming an overflow outlet structure.

[0018] Specifically, the inner reaction cylinder structure 4, the intermediate reaction cylinder structure 3, and the outer reaction cylinder structure 2 are rotated by a rotation control system located at the top. The rotation control system is used to control the rotation speed of each reaction cylinder structure in a coordinated manner.

[0019] It is understood that this embodiment ensures that the vortex intensity gradually weakens and the shear force on the flocs gradually decreases as the water flows through each reaction zone. This allows each reaction zone to generate hydraulic conditions that can meet the needs of flocs at different growth stages, ensuring that the flocs grow gradually according to a preset pattern during flocculation and have good settling performance. At the same time, it avoids the breakage of large-diameter flocs during the reaction process, ensuring a high floc growth rate. Understandably, by setting up a control system at the top to independently control the rotation of each reaction cylinder, it is possible to accurately match the different rotation parameter requirements of each reaction zone.

[0020] Specifically, the rotation control system 7 is driven by a motor and controlled by an ABB intelligent frequency converter control box to regulate the rotation speed of each reaction cylinder structure.

[0021] In this embodiment, the rotation control system 7 includes three motors, which are respectively connected to drive the inner reaction cylinder structure, the intermediate reaction cylinder structure, and the outer reaction cylinder structure. The output speed of each motor can be adjusted individually through the ABB intelligent frequency converter control box, thereby achieving precise control of the rotation speed of the three cylinders. This ensures that the rotational angular velocity can be set from the inside to the outside according to the process requirements, so as to meet the flow field control requirements of each reaction zone.

[0022] Understandably, the ABB intelligent variable frequency control box can flexibly adjust the rotation speed of each stage of the reaction cylinder according to the raw water quality, the amount of water to be treated, and the growth requirements of flocs at different stages. It can also precisely control the eddy current intensity and shear force in each Taylor vortex reaction zone, achieving dynamic and intelligent control of the flocculation process. Furthermore, it can flexibly adjust operating parameters according to actual operating conditions, reducing unnecessary energy consumption while ensuring flocculation effect, improving the overall operating economy of the device, adapting to the treatment needs of different water quality and quantity, and ensuring that the device always maintains a highly efficient and stable operating state.

[0023] Specifically, under the control of the rotation control system 7, the inner reaction cylinder structure 4, the intermediate reaction cylinder structure 3, and the outer reaction cylinder structure 2 all rotate at different speeds but in the same direction, forming a relative rotational relationship between adjacent cylinders; the relative rotational angular velocity between adjacent cylinders is the difference between their absolute angular velocities, and serves as the control parameter for the formation conditions and intensity of Taylor vortices in each annular gap; the formation state of Taylor vortices in each level of annular reaction zone is determined by the relative rotational angular velocity of the cylinders on both sides of the corresponding annular gap; the Taylor vortex reaction zone has 3 levels.

[0024] Understandably, under the control of the rotation control system 7, each stage of the cylinder rotates independently at different speeds. If all cylinders (inner reaction cylinder structure 4, intermediate reaction cylinder structure 3, and outer reaction cylinder structure 2) rotate in the same direction and all have an absolute rotational angular velocity, then adjacent cylinders form pairs of relative inner and outer cylinder combinations. Each pair of relative inner and outer cylinders has a relative rotational angular velocity, the magnitude of which is equal to the difference in their absolute speeds. Therefore, the relative rotational velocities of adjacent reaction zones can differ or approach zero. The relative rotational velocity of the inner cylinders in each reaction zone can be directly characterized by the relative velocity between adjacent cylinders. This relative velocity is the core basis for controlling the vortex formation conditions and vortex motion patterns between annular gaps.

[0025] For example, as the absolute rotational angular velocity decreases sequentially from the inside to the outside, adjacent cylinders form relative inner and outer cylinders. Each pair of relative inner and outer cylinders has a relative rotational angular velocity, and this relative rotational speed is the basis for controlling the vortex formation conditions and vortex motion patterns between each annular gap. Therefore, as long as there is a relative velocity difference between each pair of relative inner and outer cylinders, Taylor vortices that meet the flocculation requirements can be formed in their annular gaps. Furthermore, the formation of Taylor vortices in each stage of the vortex reaction zone is primarily driven by the inner cylinder. The vortex driving speed (relative speed) of each reaction zone can be the same (consistent relative velocity difference) or different. If the driving speed is the same in each reaction zone, the vortex field generated between each annular gap is consistent; if the driving speed is different, the vortex field between each annular gap will differ. The vortex field pattern of each reaction zone can be flexibly set according to actual needs. This device contains a total of 3 Taylor vortex reaction zones.

[0026] It is understandable that in the flow field of each Taylor vortex reaction zone, as the driving speed increases, the flow field between the annular gaps will successively undergo different vortex states, such as laminar flow → laminar vortex flow → wavy vortex flow → turbulent vortex flow. By controlling the driving speed at each stage, the desired vortex flow pattern can be obtained between each annular gap, and an ideal flocculation flow field with specific flow patterns and mixing intensities can be customized, thereby matching the hydraulic requirements of different flocculation stages.

[0027] It is understood that this invention is essentially a reaction system with multiple vortex morphologies and multi-scale vortex coupling. By precisely controlling the driving speed at each stage, flow field combinations that meet different reaction requirements can be generated according to the raw water quality. For example, by using a gradually decreasing absolute rotational angular velocity of the cylinder from the inside to the outside, the first-stage reaction zone can obtain a higher driving speed, the second-stage reaction zone a medium driving speed, and the third-stage reaction zone a lower driving speed. Among them, the first-stage reaction zone has high vortex intensity and shear force, which can increase the movement and collision frequency of small suspended matter, improve particle collision efficiency, and create favorable conditions for the formation of initial flocs. Therefore, it can be used as a reaction zone aimed at enhancing mass transfer and collision and promoting the formation of primary floc particles. The second-stage reaction zone has reduced vortex intensity and can be specifically used to promote the collision between primary particles, generating denser secondary, tertiary, and higher-level particles, and promoting the uniform growth of flocs. The third-stage reaction zone has the weakest vortex intensity and can be used as a reaction zone aimed at generating large flocs suitable for sedimentation. While promoting the continued growth of flocs, it avoids their breakage and continuously generates large floc particles suitable for sedimentation.

[0028] Understandably, by uniformly controlling the difference in rotational speed at each stage of the cylinder, the vortex intensity of the three-stage vortex reaction zone can be achieved through a gradient decrease, ensuring a smooth transition of the vortex field between annular gaps without drastic abrupt changes or flow field discontinuities. This provides the hydraulic conditions for a gradual and stable flocculation reaction, forming a multi-stage stable vortex field (containing various vortex morphologies) with intensity adapted to the floc growth requirements of each flocculation stage. Combined with the matching and control of the influent flow rate, the residence time of flocs in each stage of the vortex reaction zone can be rationally controlled, ensuring that the suspended solids-floc mixture undergoes a process of intense collision, multiple aggregations, and stable growth, allowing the flocculation reaction to proceed fully and avoiding the formation of too many small flocs or overly loose flocs. This device can achieve refined optimization of the entire flocculation process, improve the overall floc collision and aggregation efficiency within the reactor, effectively improve floc formation quality, ensure a high floc growth rate, and guarantee the flocculation reaction effect.

[0029] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program goods. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program goods embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0030] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program goods according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0031] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0032] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A combined Taylor vortex flocculation device, characterized in that, include: The structure consists of an inner reaction cylinder, an intermediate reaction cylinder, an outer reaction cylinder, and an outer reaction pool. The inner reaction cylinder structure, the intermediate reaction cylinder structure, the outer reaction cylinder structure, and the outer reaction pool are arranged in a nested combination. The annular gaps between the inner reaction cylinder structure and the intermediate reaction cylinder structure, between the intermediate reaction cylinder structure and the outer reaction cylinder structure, and between the outer reaction cylinder structure and the pool wall of the outer reaction pool respectively form annular reactor structures. Each annular gap can generate Taylor vortex to carry out flocculation reaction. The inner reaction cylinder structure and the intermediate reaction cylinder structure form a first-stage Taylor vortex reaction zone; the intermediate reaction cylinder structure and the outer reaction cylinder structure form a second-stage Taylor vortex reaction zone; and the outer reaction cylinder structure and the pool wall of the outer reaction tank form a third-stage Taylor vortex reaction zone.

2. The combined Taylor vortex flocculation device according to claim 1, characterized in that, The bottom of the inner reaction cylinder structure, the intermediate reaction cylinder structure, and the outer reaction cylinder structure are all provided with a slide rail and pulley linkage structure. Each reaction cylinder structure is connected to the bottom of the device through the slide rail and pulley linkage structure to ensure that each level of cylinder can rotate freely under the constraint of the pulley linkage structure, and that all the annular gaps have the same width.

3. The combined Taylor vortex flocculation device according to claim 2, characterized in that, The combined Taylor vortex flocculation device is equipped with an inlet and an outlet. The inlet is located at the bottom of the first-stage Taylor vortex reaction zone, allowing the raw water to churn up and down and flow sequentially through the first, second, and third-stage Taylor vortex reaction zones. The outlet is located at the top of the outer reaction tank, where the treated water overflows through the outer reaction tank wall and enters the collection tank before being discharged, forming an overflow outlet structure.

4. The combined Taylor vortex flocculation device according to claim 3, characterized in that, The inner reaction cylinder structure, the middle reaction cylinder structure, and the outer reaction cylinder structure are each rotated by a rotation control system located at the top. The rotation control system is used to control the rotation speed of each reaction cylinder structure in a coordinated manner.

5. The combined Taylor vortex flocculation device according to claim 4, characterized in that, The rotation control system is driven by a motor and controlled by an ABB intelligent frequency converter control box to regulate the rotation speed of each reaction cylinder structure.

6. The combined Taylor vortex flocculation device according to claim 5, characterized in that, Under the control of the rotation control system, the inner reaction cylinder structure, the intermediate reaction cylinder structure, and the outer reaction cylinder structure all rotate at different speeds but in the same direction, forming a relative rotational relationship between adjacent cylinders; the relative rotational angular velocity between adjacent cylinders is the difference between their absolute angular velocities, and serves as the control parameter for the formation conditions and intensity of Taylor vortices in each annular gap; the formation state of Taylor vortices in each level of annular reaction zone is determined by the relative rotational angular velocity of the cylinders on both sides of the corresponding annular gap; the Taylor vortex reaction zone has 3 levels.

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